AVC Socket 478 Heat Sink and Fan to 3.4GHz+ AVC Socket 478 Heat Sink and Fan to 3.4 GHz + General Features: Aluminum heat sink 2.75-inch fan DC 12V, 0.33A Supports Intel Pentium 4 Socket 478 3.4 GHz processor or higher 3-pin fan connector (approximately 8-inch cord length from fan to 3-pin connector) Regulatory Approvals: CE UL TUV CSA